Steroid Ligands Bind Human Sex Hormone-binding Globulin in Specific Orientations and Produce Distinct Changes in Protein Conformation
Grishkovskaya, I., Avvakumov, G.V., Hammond, G.L., Catalano, M.G., Muller, Y.A.(2002) J Biol Chem 277: 32086-32093
- PubMed: 12065592 
- DOI: 10.1074/jbc.M203999200
- Primary Citation of Related Structures:  
1LHN, 1LHO, 1LHU, 1LHV - PubMed Abstract: 
The amino-terminal laminin G-like domain of human sex hormone-binding globulin (SHBG) contains a single high affinity steroid-binding site. Crystal structures of this domain in complex with several different steroid ligands have revealed that estradiol occupies the SHBG steroid-binding site in an opposite orientation when compared with 5 alpha-dihydrotestosterone or C19 androgen metabolites (5 alpha-androstan-3 beta,17 beta-diol and 5 alpha-androstan-3 beta,17 alpha-diol) or the synthetic progestin levonorgestrel ...